Hartlaub, Wiss. Meeresunt. deutsch. Meere in Kiel N.F.I. 1894, p. 1.
Carter, Ann. Mag. Nat. Hist. (4) xix. 1877, p. 44; (5) i. 1878, p. 298.
The aberrant genus Hypolytus (p. [262]) may belong to this family.
Spencer, Trans. Roy. Soc. Vict. 1892, p. 8.
Journ. Coll. Sci. Tokyo, xiii. 1900, p. 235 (with a beautiful coloured illustration).